Redeemable Non-controlling Interest	9 Months Ended
Jul. 31, 2025
Noncontrolling Interest [Abstract]
Redeemable Non-controlling Interest	Redeemable Non-controlling Interest During the second quarter of fiscal 2022, we acquired a 75% equity interest in OpenLight Photonics, Inc. (OpenLight) for cash consideration of $90.0 million. The remaining 25% equity interest in OpenLight was held by Juniper Networks, Inc. (the Minority Investor) from their contribution of IP and certain tangible assets. The agreement with the Minority Investor contained redemption features whereby the interest held by the Minority Investor was redeemable either (1) at the option of the Minority Investor on or after the third anniversary of the acquisition or sooner in certain circumstances or (2) at our option beginning on the third anniversary of the acquisition. This option was exercisable at the greater of fair value at the time of redemption or $30.0 million. The fair value of the option was initially valued at $10.1 million, resulting in a total consideration of $100.1 million. As of the end of fiscal 2024, upon issuance of new OpenLight stock, our ownership interest in OpenLight was reduced to 71% and Juniper's was reduced to 24%. On December 23, 2024, we exercised the call option to purchase the remaining ownership interest held by Juniper at a redemption price of $30.0 million, bringing our ownership interest in OpenLight to 95%. Subsequently on December 30, 2024, we divested our entire ownership interest in OpenLight. We had previously recorded an impairment charge of $53.5 million related to acquired intangible assets in OpenLight in fiscal 2024. See Note 6. Goodwill and Intangible Assets of the Notes to Consolidated Financial Statements in our Annual Report for more information. The goodwill related to the OpenLight acquisition was assigned to our Design Automation reporting unit. The resulting loss on the OpenLight divestiture, included in other income (expense), net in the condensed consolidated statements of income, was not material to our results of operation. During the first quarter of fiscal 2025, prior to the exercise of the call option, OpenLight incurred a net loss of $3.5 million, of which $0.8 million was attributable to redeemable non-controlling interest. We have excluded the financial results of OpenLight from our condensed consolidated financial statements from the date of sale.

During the second quarter of fiscal 2022, we acquired a 75% equity interest in OpenLight Photonics, Inc. (OpenLight) for cash consideration of $90.0 million. The remaining 25% equity interest in OpenLight was held by Juniper Networks, Inc. (the Minority Investor) from their contribution of IP and certain tangible assets.

The agreement with the Minority Investor contained redemption features whereby the interest held by the Minority Investor was redeemable either (1) at the option of the Minority Investor on or after the third anniversary of the acquisition or sooner in certain circumstances or (2) at our option beginning on the third anniversary of the acquisition. This option was exercisable at the greater of fair value at the time of redemption or $30.0 million. The fair value of the option was initially valued at $10.1 million, resulting in a total consideration of $100.1 million.

As of the end of fiscal 2024, upon issuance of new OpenLight stock, our ownership interest in OpenLight was reduced to 71% and Juniper's was reduced to 24%. On December 23, 2024, we exercised the call option to purchase the remaining ownership interest held by Juniper at a redemption price of $30.0 million, bringing our ownership interest in OpenLight to 95%.

Subsequently on December 30, 2024, we divested our entire ownership interest in OpenLight. We had previously recorded an impairment charge of $53.5 million related to acquired intangible assets in OpenLight in fiscal 2024. See Note 6. Goodwill and Intangible Assets of the Notes to Consolidated Financial Statements in our Annual Report for more information. The goodwill related to the OpenLight acquisition was assigned to our Design Automation reporting unit. The resulting loss on the OpenLight divestiture, included in other income (expense), net in the condensed consolidated statements of income, was not material to our results of operation.

During the first quarter of fiscal 2025, prior to the exercise of the call option, OpenLight incurred a net loss of $3.5 million, of which $0.8 million was attributable to redeemable non-controlling interest. We have excluded the financial results of OpenLight from our condensed consolidated financial statements from the date of sale.